QL5632 Enhanced QuickPCI Device Data Sheet Rev. C
Table 22: RAM Cell Synchronous & Asynchronous Read Timing
Symbol
Parameter: RAM Cell Synchronous Read Timing
Value (ns)
Min Max
tSRA
RA setup time to RCLK: time the Read ADDRESS must be stable before the
active edge of the Read CLOCK
0.686
-
tHRA
RA hold time to RCLK: time the Read ADDRESS must be stable after the active
edge of the Read CLOCK
0
-
tSRE
RE setup time to WCLK: time the Read ENABLE must be stable before the
active edge of the Read CLOCK
0.243
-
tHRE
RE hold time to WCLK: time the Read ENABLE must be stable after the active
edge of the Read CLOCK
0
-
tRCRD
RCLK to RD: time between the active Read CLOCK edge and the time when the
data is available at RD
-
4.38
RAM Cell Asynchronous Read Timing
rPDRD
RA to RD: time between when the Read ADDRESS is input and when the DATA
is output
-
2.06
•
24
•
•
www.quicklogic.com
•
•
•
© 2003 QuickLogic Corporation